$NetBSD$
--- ip-lib.c.orig	2006-03-10 07:45:17.000000000 +0100
+++ ip-lib.c	2006-03-10 21:58:00.000000000 +0100
@@ -35,7 +35,7 @@
 #include <netinet/in.h>
 #include <netdb.h>
 #include <errno.h>
-
+#include <arpa/inet.h>
 #include "lib.h"
 #include "ip-lib.h"
 
